Apple iOS Type Confusion Vulnerability

HIGH 8.8EXPLOITED (CISA KEV)CVE-2022-42856 · Published 15/12/2022 · updated 17/06/2026

Apple iOS Type Confusion Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 14/12/2022. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
safari apple	`< 16.2`	`16.2`

Description

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..

References

seclists.org/fulldisclosure/2022/Dec/21 · Mailing List
seclists.org/fulldisclosure/2022/Dec/22 · Mailing List
seclists.org/fulldisclosure/2022/Dec/23 · Mailing List
seclists.org/fulldisclosure/2022/Dec/26 · Mailing List
seclists.org/fulldisclosure/2022/Dec/28 · Mailing List
openwall.com/lists/oss-security/2022/12/26/1 · Mailing List
security.gentoo.org/glsa/202305-32 · Third Party Advisory
support.apple.com/en-us/HT213516 · Release Notes
support.apple.com/en-us/HT213531 · Release Notes
support.apple.com/en-us/HT213532 · Release Notes
support.apple.com/en-us/HT213535 · Release Notes
support.apple.com/en-us/HT213537 · Release Notes
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2022-42856

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